\documentclass[11pt]{article}     \usepackage{multicol}
 \textheight15cm \textwidth9cm \parindent0mm \parskip 1ex plus2ex minus0.8ex

\begin{document}
\section*{1.   Greek Letters:}

\begin{multicols}{3}
$\alpha	    $ \verb|:\alpha|\\
$\beta	    $ \verb|:\beta|\\
$\gamma	    $ \verb|:\gamma|\\
$\delta	    $ \verb|:\delta|\\
$\epsilon   $ \verb|:\epsilon|\\
$\varepsilon$ \verb|:\varepsilon|\\
$\zeta      $ \verb|:\zeta|\\
$\eta       $ \verb|:\eta|\\
$\theta     $ \verb|:\theta|\\
$\vartheta  $ \verb|:\vartheta|\\
$\iota      $ \verb|:\iota|\\
$\kappa     $ \verb|:\kappa|\\
$\lambda    $ \verb|:lambda|\\
$\mu        $ \verb|:\mu|\\
$\nu        $ \verb|:\nu|\\
$\xi        $ \verb|:\xi|\\
$o          $ \verb|:o|\\
$\pi        $ \verb|:\pi|\\
$\varpi     $ \verb|:\varpi|\\
$\rho       $ \verb|:\rho|\\
$\varrho    $ \verb|:\varrho|\\
$\sigma     $ \verb|:\sigma|\\
$\varsigma  $ \verb|:\varsigma|\\
$\tau       $ \verb|:\tau|\\
$\upsilon   $ \verb|:\upsilon|\\
$\phi       $ \verb|:\phi|\\
$\varphi    $ \verb|:\varphi|\\
$\chi       $ \verb|:\chi|\\
$\psi       $ \verb|:\psi|\\
$\omega     $ \verb|:\omega|
\end{multicols}

\section*{{\protect\normalsize Uppercase Letters 
           (where different  \newline from Latin uppercase letters)} }

\begin{multicols}{3}
$\Gamma  $ \verb|:\Gamma|\\
$\Delta  $ \verb|:\Delta|\\ 
$\Theta  $ \verb|:\Theta|\\ 
$\Lambda $ \verb|:\Lambda|\\ 
$\Xi     $ \verb|:\Xi|\\ 
$\Pi     $ \verb|:\Pi|\\
$\Sigma  $ \verb|:\Sigma|\\ 
$\Upsilon$ \verb|:\Upsilon|\\ 
$\Phi    $ \verb|:\Phi|\\
$\Psi    $ \verb|:\Psi|\\ 
$\Omega  $ \verb|:\Omega|
\end{multicols}

\end{document}
